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Tire Question(16 posts)

Tire Questiontxcross
Jan 9, 2003 12:23 PM
I am in the process of training for the BP MS150 (Houston to Austin) in April. I currently have Ritchy SpeedMax tires, running at 75-80 psi, and am wondering if I will notice a significant difference on the road if I switch to 110-120 psi road tires.

Thanks in advance.
re: Tire Questionadventurefind
Jan 9, 2003 12:47 PM
you will feel a difference. I have a set of road tires from Fortezza tires. They use 145 psi and they fly!
You'll be confortable on a set of 700c/25 or 700c/28.
re: Tire Questionatpjunkie
Jan 9, 2003 1:19 PM
great tires the Fortezzas. also try the Michelie Axials
Jan 9, 2003 3:23 PM
Prior to my SS cross bike, I commuted with a tange SR with suntour superbe pro using Vittoria kevlar techo twins 25mm, if I remember corrrectly I purchase them through @ $15 ea. I have had good luck with Vittoria products. I find the Michelin Axials snug and somewhat difficult to get on, may be the ambrosio rims?
I don'tlaffeaux
Jan 9, 2003 3:27 PM
I have two wheel sets. One has Ritchey Speedmax Pro 32mm tires, and the other has Michelin Axial Pro 23mm tires. I switch them out based on the ride I'm doing. The 'cross wheels ride smoother and almost as fast as the road set as long as I'm not climbing. On my commute (which is pretty flat) I can't see any change in my average speed based on the wheels that I use. However if I do a long climb I do notice that it's a bit harder with the cross wheels - by long climbs I mean 1,200-2,000 vertical feet over 4-6 miles.

It's probably worth switching tires for a long ride like that, but it's not going to be a dramatic change (IMO). And if you don't want to spend the $90-$100 for a new set of road tires don't bother.
I don'tatpjunkie
Jan 9, 2003 6:51 PM
I rarely ride my cx tires on the road. I try to save the knobs. My average does drop about 2-4mph from my road bike. Maybe it's the lack of the big gears maybe the tires, maybe the less aero position. who knows
you don't because those are semi-slicks, right?weiwentg
Jan 10, 2003 8:40 AM
I do notice a difference, since I'm using Michelin Muds. I never train with the Muds, anyway. spare the knobs. if you're using semi-slicks, you could probably stick with those, but I'd get a set of good road tires anyway. if you get the ones on closeout from places like Performance, you don't need to pay $100 for a set.
Not really semi-slickslaffeaux
Jan 10, 2003 11:25 AM
The Speedmax isn't really a semi-slick, but it does have a narrow ridge down the center of the tire.

I have the option to go off road for several miles on my commute to work. When the tires are dirty and I hop back on the road, I find that the center few milimeters of the tire clears the dirt, while 90% of the tire stays dirty. I think the tires run on the center ridge while on pavement offering minimal rolling resistance. The Speedmax tires are not an extreme knobbie either, which I'm sure helps. They're cheap too (1/2 the price of road tires), so I'm not overly concerned about road wear.
picture of treadlaffeaux
Jan 10, 2003 11:28 AM
Here's a pic:
picture of treadatpjunkie
Jan 10, 2003 12:10 PM
good lookin' tire. I know I can steadily hold 20-27 mph on my roadie for long durations, holding 20+ on my cross is more of an effort. I'm going to throw slicks on one of my crossers after the season and time my commutes (21 miles)
hmm, should have got those instead of mudsweiwentg
Jan 10, 2003 1:53 PM
it doesn't get real muddy here in MI.
yea but ya can't beat the green.atpjunkie
Jan 10, 2003 4:34 PM
going to miss it when they change the color. Maybe I'll get some yellow Tufos
Jan 10, 2003 5:22 PM
well, on one hand, I really like the colors on the Pro Races. on the other hand, Michelin's green is quite distinctive, and immediately lets you know who has good taste in tires :p
yea but ya can't beat the green.Eric Marshall
Jan 11, 2003 2:47 AM
Blasphemy! I got into cross just because of these tires :-) When's this suppose to happen? I have been thinking about those yellow LPS though...
yea but ya can't beat the green.atpjunkie
Jan 13, 2003 12:33 PM
next year they go to blue and black. I pinch flatted a quarter of the way into the bell lap (after 2 of us had dropped the rest of the field by over a minute) in an attempt to pass in a fairly rocky section. Rode the rest of the lap on a flat (pit was near start/finish) went from guaranteed 1st or 2nd to fourth. I'm switching to those funny colored Tufo's. I'll miss the green, but right now, not that much.
Same Setuppeter in NVA
Jan 11, 2003 2:05 PM
I use the Speedmax 32 for cross and the Axial 23 for road.
Once up to speed on the flats I don't notice much difference but sure do climbing. I also feel more secure (ironically) with the Axials when cornering. They transition so smoothly.